Temperature and structure effects on the electrical conductivity properties of some azo compounds and their copper(II) complexes
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The electrical conductivity of some 5-(m-substituted phenylazo) barbituric acid derivatives as well as their copper(II) complexes has been measured in the temperature range 297 to 443 K. The results revealed semiconducting properties for these systems. The conductivity curves in most cases gave two different activation energies. Both the structure of the ligand and the temperature played an effective role in the conduction process. Empirical equations correlating the activation energy to the conductivity are given. The mobility was calculated and a hopping model is proposed to explain the conduction process.
KeywordsPolymer Copper Activation Energy Electrical Conductivity Acid Derivative
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